Putting together an orange crew-neck t-shirt with brown plaid chinos is a smart option for a laid-back yet sharp outfit. Get a bit experimental in the shoe department and add a pair of derby shoes to your ensemble. There are a ton of ways to look great and live through the heatwave, and this here is one of them. Think it's hard for men in their 20s to master semi-casual dressing? This pairing will prove you otherwise.